<template>
  <div>
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--bread-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 三级联动面包屑 -->
            <li class="with-x" v-show="args.categoryName">{{args.categoryName}}<i @click="clearQuery">×</i></li>
            <!-- 搜索框面包屑 -->
            <li class="with-x" v-show="args.keyword">{{args.keyword}}<i @click="clearParams">×</i></li>
            <!-- 品牌面包屑 -->
            <li class="with-x" v-show="args.trademark">{{args.trademark.split(':')[1]}}<i @click="clearTrademark">×</i></li>
            <!-- 平台属性面包屑 -->
            <li class="with-x" v-for="(attr,index) in args.props" :key="index">{{attr.split(':')[1]}}<i @click="clearAttrs(index)">×</i></li>
          </ul>
        </div>

        <!--selector-->
        <!-- 绑定自定义事件,用以传递参数 -->
        <SearchSelector @getTrademark="getTrademark" @getAttrs="getAttrs"/>

        <!--details-->
        <div class="details clearfix">
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <!-- 动态添加active类名 -->
                <!-- 点击事件传入参数为综合或者价格的标识 -->
                <li :class="{active:isComprehensive}" @click="changeOrder('1')">
                  <!-- 动态添加上下箭头 -->
                  <a href="#">综合<span v-show="isComprehensive" class="iconfont" :class="{'icon-jiantou_xiangxia':isDesc,'icon-jiantou_xiangshang':isAsc}"></span></a>
                </li>
                <li :class="{active:isPrice}" @click="changeOrder('2')">
                  <a href="#">销量<span v-show="isPrice" class="iconfont" :class="{'icon-jiantou_xiangxia':isDesc,'icon-jiantou_xiangshang':isAsc}"></span></a>
                </li>
              </ul>
            </div>
          </div>
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="(item) in goodsList" :key="item.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <!-- 商品详情 跳转路由 -->
                    <router-link :to="`/detail/${item.id}`">
                      <img :src="item.defaultImg"/>
                    </router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{item.price}}</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a :title="item.title">
                      {{item.title}}
                    </a>
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a
                      href="success-cart.html"
                      target="_blank"
                      class="sui-btn btn-bordered btn-danger"
                      >加入购物车</a
                    >
                    <a href="javascript:void(0);" class="sui-btn btn-bordered"
                      >收藏</a
                    >
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 页码器:全局组件
            total:分页器需要一共展示多少条数据  
            pageSize:每一页展示几条数据  
            pageNo:当前第几页
            continues:连续页码数5 7 9 112
           -->
          <Pagination :total="total" :pageSize="args.pageSize" :pageNo="args.pageNo" :continues="5" @clickPage="clickPage" />
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import SearchSelector from "./SearchSelector/SearchSelector";
import { mapGetters,mapState } from "vuex";
export default {
  name: "Search",
  data() {
    return {
      //存储数据
      args: {
        category1Id: undefined,
        category2Id: undefined,
        category3Id: undefined,
        categoryName: "",
        keyword: "",
        order: "1:desc",
        pageNo: 1,
        pageSize: 3,
        props: [],
        trademark: "",
      },
    };
  },
  components: {
    SearchSelector,
  },
  computed: {
    //在getters中获取goodslist
    ...mapGetters(["goodsList"]),
    //是不是综合
    isComprehensive(){
      return this.args.order.indexOf('1') != -1
    },
    //是不是价格
    isPrice(){
      return this.args.order.indexOf('2') != -1
    },
    //是不是升序
    isAsc(){
      return this.args.order.indexOf('asc') !== -1
    },
    //是不是降序
    isDesc(){
      return this.args.order.indexOf('desc') !== -1
    },
    //获取searchData.total
    ...mapState({
      total:(state) => state.search.searchData.total
    })
  },
  methods: {
    //封装方法,发送请求获取数据,以便重复利用
    //此处需要传递参数,携带参数发送请求
    getSearchData() {
      //将参数对象作为参数传入
      this.$store.dispatch("getSearchList", this.args);
    },
    //清除query参数搜索的数据
    clearQuery(){
      //将args里的categoryName置空
      this.args.categoryName = '';
      //若原来有params参数,则需要保留
      if(this.$route.params){
        this.$router.push({
          name:'search',
          params:this.$route.params
        })
      }
    },
    //清除params参数搜索的数据
    clearParams(){
      this.args.keyword = '';
      if(this.$route.query){
        this.$router.push({name:'search',query:this.$route.query})
      }
      //通知Header组件,清空搜索框
      this.$bus.$emit('clearSearch')
    },

    //绑定自定义事件,接收来自子组件的参数
    getTrademark(trademark){
      //接收品牌参数,并发送请求
      this.args.trademark = `${trademark.tmId}:${trademark.tmName}`;
      //整合来自子组件的参数后,向服务器发送请求
      this.getSearchData()
    },
    //清除品牌面包屑
    clearTrademark(){
      //置空
      this.args.trademark = '';
      //发送请求
      this.getSearchData()
    },

    //绑定自定义事件,接收子组件传递的平台属性信息
    getAttrs(attr,attrValue){
      let prop = `${attr.attrId}:${attrValue}:${attr.attrName}`;
      //判断this.args.props中是否含有重复的选项,避免用户重复点击同一个属性
      if(this.args.props.indexOf(prop) == -1){
        //判断条件成立,则props中不含有重复项,可以发送请求
        this.args.props.push(prop);
        this.getSearchData()
      }
    },
    //清除平台属性面包屑
    clearAttrs(index){
      this.args.props.splice(index,1);
      this.getSearchData()
    },
    //排序的处理回调
    changeOrder(flag){
      //通过传入的flag判断传入的是哪一个判断点击的是哪一个
      //初始(上一次)的综合/价格标记
      let orginFlag = this.args.order.split(':')[0];
      //初始(上一次)的升序/降序标记
      let orginSort = this.args.order.split(':')[1];
      let newOrder = '';
      if(orginFlag === flag){
        //进入此判断代表点击的是有背景颜色的那一项,即初始(或上一次点击过的)那一项
        //此时保持flag不变,改变升序/降序即可
        newOrder = `${orginFlag}:${orginSort=='asc'?'desc':'asc'}`
      }else{
        //进入此判断,表示用户点击的不是初始(上一次的)综合/价格选项了,保持desc不变
        newOrder = `${flag}:desc`
      }
      //携带新的order请求数据
      this.args.order = newOrder;
      this.getSearchData()
    },
    //修改pageNo的自定义事件 
    clickPage(page){
      this.args.pageNo = page
      this.getSearchData()
    }
  },
  //在组件挂载前完成参数数据的获取和整合
  beforeMount() {
    //将$route.query和$route.params的数据整合至args
    Object.assign(this.args,this.$route.query,this.$route.params)
  },
  //组件挂载完成发送请求获取数据
  //从this.$route中获取数据作为参数传入
  mounted() {
    this.getSearchData();
  },
  //发送请求获取数据写在mounted钩子中,会造成无法刷新数据的情况,因为组件只挂载了一次
  //监视$route,只要路由发生变化,就要重新获取数据,刷新页面
  watch: {
    $route(){
      //清除掉上次发送请求遗留的参数
      this.args.category1Id = undefined;
      this.args.category2Id = undefined;
      this.args.category3Id = undefined;
      //重新整理参数并合并,发送请求
      Object.assign(this.args,this.$route.query,this.$route.params);
      this.getSearchData()
    }
  },
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;

                  i {
                    margin-left: -5px;
                  }
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      
    }
  }
}
</style>